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package br.com.caelum.brutauth.interceptors;

import static java.util.Arrays.asList;

import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;

public class BrutauthClassOrMethod {
	private final Annotation[] annotations;

	public BrutauthClassOrMethod(Method method) {
		annotations = method.getAnnotations();
	}
	
	public BrutauthClassOrMethod(Class clazz) {
		annotations = clazz.getAnnotations();
	}

	public boolean containsAnnotation(Class annotation) {
		for (Annotation currentAnnotation : annotations) {
			if(currentAnnotation.annotationType().equals(annotation)) return true;
		}
		return false;
	}

	@SuppressWarnings("unchecked")
	public  T getAnnotation(Class annotation) {
		for (Annotation currentAnnotation : annotations) {
			if(currentAnnotation.annotationType().equals(annotation)) return (T) currentAnnotation;
		}
		throw new IllegalStateException("Cannot find annotation "+ annotation.getSimpleName()+ " at current class or method");
	}

	public List getAnnotations() {
		return new ArrayList<>(asList(annotations));
	}

}